U.S. patent application number 11/301041 was filed with the patent office on 2006-05-11 for cleaner which renders a surface hydrophobic.
Invention is credited to Isaac B. III Horton.
Application Number | 20060100125 11/301041 |
Document ID | / |
Family ID | 35461260 |
Filed Date | 2006-05-11 |
United States Patent
Application |
20060100125 |
Kind Code |
A1 |
Horton; Isaac B. III |
May 11, 2006 |
Cleaner which renders a surface hydrophobic
Abstract
A cleaning composition, in a concentrated form comprising a
water-soluble organic solvent, at least one surfactant which
comprises at least one amide, at least one additional surfactant, a
chelating agent, at least one hydrophobic active agent, and
distilled water. The preferred embodiment of the cleaning
composition comprises all-natural components.
Inventors: |
Horton; Isaac B. III;
(Raleigh, NC) |
Correspondence
Address: |
Isaac B. Horton, III
8824 Stage Ford Road
Raleigh
NC
27615
US
|
Family ID: |
35461260 |
Appl. No.: |
11/301041 |
Filed: |
December 12, 2005 |
Related U.S. Patent Documents
|
|
|
|
|
|
Application
Number |
Filing Date |
Patent Number |
|
|
10868464 |
Jun 15, 2004 |
|
|
|
11301041 |
Dec 12, 2005 |
|
|
|
Current U.S.
Class: |
510/421 ;
510/499 |
Current CPC
Class: |
C11D 1/72 20130101; C11D
1/835 20130101; C11D 3/43 20130101; C11D 1/523 20130101; C11D 3/48
20130101; C11D 3/33 20130101; C11D 3/505 20130101; C11D 3/2068
20130101 |
Class at
Publication: |
510/421 ;
510/499 |
International
Class: |
C11D 17/08 20060101
C11D017/08 |
Claims
1. A cleaning composition in a concentrated form comprising: (a) a
water-soluble organic solvent, (b) at least one amide surfactant,
(c) at least one additional surfactant, (d) a chelating agent, (e)
at least one hydrophobic active agent, and (f) the remainder
distilled water.
2. The cleaning composition according to claim 1, wherein the
water-soluble organic solvent is a water-soluble organic
alcohol.
3. The cleaning composition according to claim 1, wherein the
amount of water-soluble organic solvent is between about 3% and
about 16% by weight of the total composition.
4. The cleaning composition according to claim 1, wherein the at
least one amide surfactant is the product of the saponification of
at least one fatty acid by an amino alcohol.
5. The cleaning composition according to claim 4, wherein the
amount of amino alcohol is between about 3% and about 9% by weight
of the total composition.
6. The cleaning composition according to claim 4, wherein the at
least one fatty acid is chosen from the group comprising saturated
fatty acids of the general formula C.sub.xH.sub.2xO.sub.2, wherein
the value of x is any whole number between and including 16 and 24;
monounsaturated or polyunsaturated fatty acids of the general
formula C.sub.xH.sub.(2x-y)O.sub.2, wherein the value of x is any
whole number between and including 16 and 20 and y is either 2 or
4; and mixtures thereof.
7. The cleaning composition according to claim 4, wherein the at
least one fatty acid is chosen from the group comprising palmitic
acid; palmitoleic acid; stearic acid; oleic acid; linoleic acid;
5,9,12-octadecatrienoic acid; 5,11,14-eicosatrienoic acid;
cis,cis-5,9-octadecadienoic acid; cis-11-octadecanoic; eicosanoic
acid; docosanoic acid; tetracosanoic acid; and mixtures
thereof.
8. The cleaning composition according to claim 1, wherein the at
least one amide surfactant is at least one fatty acid amide.
9. The cleaning composition according to claim 8, wherein the at
least one fatty acid amide is a member of the group of amides
comprising compounds with the structure
CH.sub.3(CH.sub.2).sub.xCONH(CH.sub.2).sub.2OH, wherein the value
of x is any whole number between and including 14 and 22;
CH.sub.3(CH.sub.2).sub.nCH.dbd.CH(CH.sub.2).sub.yCONH(CH.sub.2).sub.2OH,
wherein the value of x+y is any whole number between and including
12 and 16;
CH.sub.3(CH.sub.2).sub.xCH.dbd.CH(CH.sub.2).sub.yCH.dbd.CH(CH.sub.2).-
sub.zCONH(CH.sub.2).sub.2OH, wherein the value of x+y is any whole
number between and including 10 and 14; and mixtures thereof.
10. The cleaning composition according to claim 1, wherein the
amount of the at least one hydrophobic active agent is between
about 1% and about 20% by weight of the total composition.
11. The cleaning composition according to claim 1, wherein the
amount of the at least one hydrophobic active agent is between
about 2% and about 10% by weight of the total composition.
12. The cleaning composition according to claim 1, wherein the at
least one hydrophobic active agent is an organopolysiloxane of the
formula SiR3(OSiR2)nOSiR3, wherein n is an integer ranging from 0
to 150, at least one R group is an aminated group, and the
remaining R groups may each independently represent an alkyl or
alkoxy group with 1 to 20 carbon atoms, a cycloalkyl group with 3
to 10 carbon atoms, a phenyl group, an aminated group, or a halogen
or a hydrogen.
13. A cleaning composition in a concentrated form comprising: (a) a
water-soluble organic solvent; (b) at least one amide surfactant,
wherein the at least one amide surfactant is the product of the
saponification of at least one fatty acid by an amino alcohol; (c)
at least one additional surfactant, wherein the at least one
additional surfactant is a polyethylene oxide condensate of an
alkylphenol; (d) a chelating agent, wherein the chelating agent is
an aminocarboxylic acid salt; and (e) at least one hydrophobic
active agent (f) the remainder distilled water.
14. The cleaning composition according to claim 13, wherein the
amount of water-soluble organic solvent is between about 3% and
about 16% by weight of the total composition.
15. The cleaning composition according to claim 13, wherein the at
least one amide surfactant is the product of the saponification of
at least one fatty acid by an amino alcohol.
16. The cleaning composition according to claim 15, wherein the
amount of the at least one fatty acid is between about 7% and about
14% by weight of the total composition.
17. The cleaning composition according to claim 15, wherein the at
least one fatty acid is tall oil, also known as pine oil.
18. The cleaning composition according to claim 13, wherein the
amount of the at least one surface enhancing agent is between about
1% and about 20% by weight of the total composition.
19. The cleaning composition according to claim 13, wherein the at
least one hydrophobic active agent is an organopolysiloxane of the
formula SiR3(OSiR2)nOSiR3, wherein n is an integer ranging from 0
to 150, at least one R group is an aminated group, and the
remaining R groups may each independently represent an alkyl or
alkoxy group with 1 to 20 carbon atoms, a cycloalkyl group with 3
to 10 carbon atoms, a phenyl group, an aminated group, or a halogen
or a hydrogen.
20. The cleaning composition according to claim 13, further
comprising products of a Diels-Alder cycloaddition of the at least
one fatty acid.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This nonprovisional utility patent application is copending
with nonprovisional application Ser. No. 10/868,649 filed on Jun.
15, 2004, and nonprovisional application Ser. No. 10/868,541 filed
on Jun. 15, 2004, and nonprovisional application Ser. No.
10/868,464 filed on Jun. 15, 2004.
BACKGROUND OF THE INVENTION
[0002] (1) Field of the Invention
[0003] The present invention relates generally to a cleaning
composition and, more particularly, to an all-purpose cleaning
composition which cleans and leaves a protective hydrophobic
coating on surfaces including textiles, glass, automobiles, and
hard surfaces.
[0004] (2) Description of the Prior Art
[0005] There are a large number of cleaning products currently on
the market. Typically, cleaning compositions, detergents, and the
like contain a combination of many components including but not
limited to anionic surfactants, cationic surfactants, nonionic
surfactants, builders, suds-stabilizers, buffers, disinfecting
agents, wetting agents, and chelating agents. Often these cleaning
compositions employ components that may have adverse effects on the
environment such as phosphorous compounds, peroxygen compounds,
chlorine bleach compounds, and fluorinated compounds.
[0006] Prior art related to this invention is as follows:
[0007] U.S. Pat. No. 6,720,297 issued to Jenevein on Apr. 13, 2004
for a cleaning composition teaches a cleaning composition for
treating and removing stains from a non-porous surface. The
composition has one or more salts, such as quaternary ammonium
salts, sulfates and chlorides, a chelator and a dispersant,
dissolved in an aqueous solution of alcohol. The preferred salts
are myristyltrimethylammonium bromide and benzethonium chloride,
the chelator is tetrasodium salt ethylenediamine of tetraacetic
acid, and the dispersant is polyvinyl alcohol. The cleaning
composition is incorporated into a product, which has a non-woven
polyester carrier impregnated with the cleaning composition.
[0008] U.S. Pat. No. 5,759,980 issued to Russo, et al. on Jun. 2,
1998 for a car wash teaches a novel car wash composition which
substantially eliminates water-spotting. This novel car wash
composition is comprised of: a surfactant package which is
comprised of a first surfactant selected from the group consisting
essentially of an anionic surfactant, a nonionic surfactant and
mixtures thereof; and a second surfactant selected from the group
consisting essentially of fluorosurfactant, a silicone surfactant,
and mixtures thereof; and a substantive polymer that renders the
surface to be cleaned more hydrophilic.
[0009] U.S. Pat. No. 6,732,747 issued to Wise on May 11, 2004 for a
composition and method for cleaning and disinfecting a garbage
disposal teaches an improved composition and method for cleaning
and disinfecting a garbage disposal that does not require aerosol
propellants or carbon dioxide gas generating reaction systems. The
composition comprises a suds stabilizing surfactant and a
disinfecting agent, plus other optional ingredients such as
additional detergent surfactant and scouring agents. The required
disinfecting agent is selected from the group consisting of
quaternary ammonium compounds, halogenated compounds, phenolics,
alcohols, aldehydes, oxidizing agents and mixtures thereof.
[0010] United States Patent Application Pub. No. 20040043041 filed
by Baker, et al. on Mar. 4, 2004 for antimicrobial compositions and
methods of use teaches compositions and methods for decreasing the
infectivity, morbidity, and rate of mortality associated with a
variety of pathogenic organisms and viruses. The reference
invention also relates to methods and compositions for
decontaminating areas colonized or otherwise infected by pathogenic
organisms and viruses. Moreover, the reference invention relates to
methods and compositions for decreasing the infectivity of
pathogenic organisms in foodstuffs. In particular, decreased
pathogenic organism infectivity, morbidity, and mortality are
accomplished by contacting the pathogenic organism with an
oil-in-water nanoemulsion comprising an oil, an organic solvent,
and a surfactant dispersed in an aqueous phase. In some preferred
embodiments, the solvent comprises an organic phosphate solvent. In
still other embodiments, the organic phosphate-based solvent
comprises dialkyl phosphates or trialkyl phosphates (e.g., tributyl
phosphate).
[0011] While these compositions can lead to a useful cleaning
agent, a simpler composition that retains superior cleaning
activity while reducing the number of components could simplify the
manufacturing process, potentially reducing production costs
without sacrificing product quality. Further, many of these
cleaning compositions employ components that may have adverse
effects on the environment. Thus, there remains a need for a
superior cleaning composition having a simple composition that is
environmentally friendly, easily formulated, and cost
effective.
[0012] For a variety of reasons consumers may want the surface they
have cleaned to demonstrate certain properties such as stain
resistance, hydrophilicity, or hydrophobicity. Therefore, it is an
object of the present invention to provide a cleaning composition
effective for the removal of soils which also comprises a surface
enhancing agent to provide the cleaned surface with a protective
coating which imparts the desired characteristics to that surface.
More specifically, it is an object of the present invention to
provide a cleaning composition effective for the removal of soils
wherein the surface enhancing agent comprises a hydrophobic active
agent, to render the cleaned surface hydrophobic.
[0013] Surfaces that are hydrophobic have a low affinity for water.
This low affinity will cause water droplets on hydrophobic surfaces
to bead. This means that the contact angle, the angle between the
water droplet and the surface, will be large, typically greater
than 90 degrees. On the other hand, surfaces that are hydrophilic
have a high affinity for water. These hydrophilic surfaces will
cause water droplets to spread. The contact angle of a water
droplet on a hydrophilic surface is between 0 and 90 degrees.
Wetting occurs when the contact angle is zero and the "droplet" is
actually a sheet of water.
[0014] One challenge in using surface enhancing agents is that the
surface modification must be resistant to rinsing and in some cases
repeated rinsing. To impart such characteristics to a surface a
polymer or other agent must be capable of modifying the surface by
adhesion or association through covalent or electrostatic
interactions, hydrogen bonding, or van der Waals forces. The
surface modification must remain on the surface during and after
the cleaning process.
[0015] Hydrophobic active agents are known in the art. By way of
example, it is known in the art to use a hydrophobic active agent
of organopolysiloxane type for rendering a surface hydrophobic. See
U.S. Pat. No. 6,596,060 incorporated herein by reference in its
entirety.
SUMMARY OF THE INVENTION
[0016] The present invention is directed to a surface enhancing
cleaning solution for use in cleaning a range of surfaces including
but not limited to textiles, glass, automobiles, and hard surfaces.
The cleaning solution further contains a hydrophobic active agent
which will render the cleaned surface hydrophobic. Thus, the
present invention provides a cleaning composition in a concentrated
form comprising a water-soluble organic solvent, at least one
surfactant which comprises at least one amide, a chelating agent,
at least one hydrophobic active agent, and distilled water; thereby
providing a superior cleaner having a simple composition that is
easily formulated, and cost effective. The cleaning composition may
further include at least one preservative.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0017] The present invention provides an all-purpose cleaner with
superior cleaning ability for a range of materials including but
not limited to textiles, glass, automobiles, and hard surfaces. The
cleaner is a concentrated composition which is preferably diluted
prior to distribution to consumers for end use, such as by
bottlers. The cleaning composition contains the following
components:
[0018] (a) at least one water-soluble organic solvent present in a
solubilizing effective amount;
[0019] (b) a first surfactant which comprises at least one amide
which may be the product of the saponification of at least one
fatty acid by an amino alcohol in a water-soluble organic solvent,
wherein the first surfactant is present in a cleaning-effective
amount;
[0020] (c) at least one additional surfactant present in a
cleaning-effective amount;
[0021] (d) a chelating agent capable of chelating multivalent metal
ions, wherein the chelating agent is present in an amount effective
to prevent phase reversal of the oil-in-water emulsifier; and
[0022] (e) a hydrophobic active agent capable of rendering the
surface hydrophobic, wherein the hydrophobic active agent is
present in an amount effective to increase the water contact angle
to greater than 100 degrees.
[0023] (f) the remainder, distilled water.
[0024] Additional adjuncts in small amounts such as fragrance, dye
and the like can be included to provide desirable attributes of
such adjuncts.
[0025] In the application, effective amounts are generally those
amounts listed as levels of ingredients in the descriptions which
follow hereto. Unless otherwise stated, amounts listed in
percentages are in weight percents (%'s) of the composition.
[0026] Solvent
[0027] The solvent should be a water-soluble organic solvent.
Further, the solvent is preferably a water-soluble organic alcohol.
The most preferred water-soluble organic solvent is
tetrahydrofurfuryl alcohol (THF-A). THF-A is an organic solvent
that is completely miscible with water. THF-A has an extensive
history of use as a highly versatile, high purity solvent. Due to
its relatively benign nature and the fact that it is not oil-based,
THF-A is generally regarded as a "green" solvent in industrial
applications. THF-A readily biodegrades in soil, sludge, and water.
The atmospheric half life is 13 hours. Unused THF-A is not
classified as a hazardous waste under the Resource Conservation and
Recovery Act.
[0028] Surfactants
[0029] The first surfactant is at least one amide. The preferred
amide is at least one naturally occurring amide. The most preferred
amide is a member of the group of amides comprising compounds with
the structure CH.sub.3(CH.sub.2).sub.xCONH(CH.sub.2).sub.2OH,
wherein the value of x is preferably any whole number between and
including 14 and 22;
CH.sub.3(CH.sub.2).sub.xCH.dbd.CH(CH.sub.2).sub.yCONH(CH.sub.2).sub.2OH,
wherein the value of x+y is preferably any whole number between and
including 12 and 16;
CH.sub.3(CH.sub.2).sub.xCH.dbd.CH(CH.sub.2).sub.yCH.dbd.CH(CH.sub.2).sub.-
zCONH(CH.sub.2).sub.2OH, wherein the value of x+y is preferably any
whole number between and including 10 and 14; and mixtures
thereof.
[0030] In another embodiment, the first surfactant may the product
of the saponification of at least one fatty acid by an amino
alcohol in a water-soluble organic solvent. The preferred at least
one fatty acid is chosen from the group comprising saturated fatty
acids of the general formula C.sub.xH.sub.2xO.sub.2, wherein the
value of x is preferably any whole number between and including 16
and 24; monounsaturated or polyunsaturated fatty acids of the
general formula C.sub.xH.sub.(2x-y)O.sub.2, wherein the value of x
is preferably any whole number between and including 16 and 20 and
the value of y is preferably either 2 or 4; and mixtures thereof. A
more preferred fatty acid is one chosen from the group comprising
palmitic acid; palmitoleic acid; stearic acid; oleic acid; linoleic
acid; 5,9,12-octadecatrienoic acid; 5,11,14-eicosatrienoic acid;
cis,cis-5,9-octadecadienoic acid; cis-11-octadecanoic; eicosanoic
acid; docosanoic acid; tetracosanoic acid; and mixtures thereof.
The most preferred fatty acid is tall oil also known as pine oil.
Tall oil is commercially available as MeadWestvaco L-5, marketed by
MeadWestvaco, which comprises at least 95% tall oil fatty acid and
less than 5% rosin acids. Any suitable fatty acid may contain rosin
acids present in small amounts not to exceed about 5% by weight of
the total weight of the fatty acid. The preferred amino alcohol is
an ethanolamine. The most preferred amino alcohol is
monoethanolamine.
[0031] The at least one additional surfactant is preferably at
least one polyethylene oxide condensate of an alkyl phenol.
Suitable additional surfactants are octylphenol ethoxylates that
have the chemical formula
C.sub.8H.sub.17(C.sub.6H.sub.4)O(CH.sub.2CH.sub.2O).sub.xH, wherein
the average value of x for any mixture of these compounds is
preferably any number between and including 3 and 11. Optimally two
surfactant mixtures are used, wherein the average value of x for
the first surfactant mixture is preferably 4.5, and wherein the
average value of x for the second surfactant mixture is preferably
9.5. These preferred surfactant mixtures are commercially marketed
under the names Triton X-45 and Triton X-100 by The Dow Chemical
Company.
[0032] Chelating Agent
[0033] The chelating agent is required to chelate multivalent metal
ions and thus prevent phase reversal of the oil-in-water
emulsifier. The preferred chelating agent is an aminocarboxylic
acid salt. The most preferred chelating agent is tetrasodium
ethylenediaminetetraacetic acid (Na.sub.4EDTA). This compound is
commercially marketed as an aqueous solution of about 38% by weight
Na.sub.4EDTA under the name Versene by The Dow Chemical
Company.
[0034] Hydrophobic Active Agent
[0035] The hydrophobic active agent must be water soluble and must
have surface activity such that it will be adsorbed to the cleaned
surface from the cleaning composition. Due to hydrophobicity it is
preferable for the amount of organic solvent and the presence of
amino groups to be sufficient for the hydrophobic active agent to
remain dissolved after the addition of distilled water; thus, it is
preferable to retain a more concentrated form of the composition.
The surface enhancing agent will increase the hydrophobicity of the
surface. A surface enhancing agent according to the present
invention illustratively includes an organopolysiloxane of the
formula SiR3(OSiR2)nOSiR3, wherein n is an integer ranging from 0
to 150 and each R independently represents an alkyl or alkoxy group
with 1 to 20 carbon atoms, a cycloalkyl group with 3 to 10 carbon
atoms, a phenyl group, an aminated group, a halogen, or a hydrogen,
with the condition that at least one of the R groups is an aminated
group.
[0036] Water and Miscellaneous
[0037] The invention comprises a cleaning concentrate. Water may be
present at levels of between about 6% and about 99.6% by volume.
The most preferred amount of water is between about 47% and about
53% by volume. The preferred embodiment of this invention is a
concentrated formulation which is preferably further diluted with
water before end use.
[0038] Some of the amides and acids that are present in this
composition are known to undergo intermolecular and intramolecular
Diels-Alder cyclization reactions. Some of the products of those
reactions are known to have biological activity. Because these
products are present in the cleaning composition of the current
invention, and these products show biological activity, no
additional biocide is necessary in this composition. By way of
example, but not limitation one of these cyclization products is
cyclopinolenic acid.
[0039] Additionally, small amounts of adjuncts may be added to the
composition for aesthetic qualities. These adjuncts include
perfumes and dyes.
[0040] The invention further provides a method for formulating the
cleaning concentrate. The method of formulating the cleaning
composition of the present invention relies upon adherence to
certain process parameters that lead to a unique product. The order
of addition of the various components is critical. It is also vital
that the process temperature be maintained throughout the
procedure.
[0041] The composition is formulated in a reactor. The preferred
reactor is a glass or Hastelloy reactor equipped with a reflux
condenser and a means of stirring. The means of stirring may be a
stir bar or agitator. The reactor should be clean prior to the
reaction.
[0042] The reactor is charged with a water-soluble organic solvent.
A suitable amount of water-soluble organic solvent is between about
3% and about 16% by weight of the total composition. The most
preferred amount of water-soluble organic solvent is between about
3% and about 9% by weight of the total composition. In a preferred
embodiment the water-soluble organic solvent is a water-soluble
organic alcohol. In the most preferred embodiment the water-soluble
organic solvent is tetrahydrofurfuryl alcohol (THF-A).
[0043] The reactor is charged with an amino alcohol. The stirring
mechanism is employed while the reactor is charged with the amino
alcohol. The stirring mechanism is continuously employed during the
remainder of the process. A suitable amount of amino alcohol is
between about 3% and about 9% by weight of the total composition.
The amino alcohol undergoes a chemical reaction with the fatty acid
in a 1 to 1 mole ratio. However, in the preferred embodiment the
fatty acid is present in excess amounts. In a preferred embodiment
the amino alcohol is an ethanolamine. In the most preferred
embodiment the amino alcohol is monoethanolamine.
[0044] The contents of the reactor must be heated. The preferred
temperature range for this process is between 75 and 90 degrees
Celsius (C). The most preferred temperature range for this process
is between 80 and 85 degrees C. This temperature range is
maintained throughout the process. Immediately following additions
of various components the batch temperature may fall below this
range. At no time should the temperature be allowed to fall below
55 degrees C. The batch temperature should recover quickly to the
required range.
[0045] At least one fatty acid is added to the reactor. A suitable
amount of the at least one fatty acid is between about 7% and about
14% by weight of the total composition. The fatty acid is added via
a clean gravity feed vessel. Alternatively a pump type vessel may
be employed for the addition. After addition of the fatty acid the
contents of the reactor are stirred for a first time period during
which the reaction is monitored until it is complete. The reaction
may be determined to be complete by any convenient method used in
the art. Suitable methods include thin layer chromatography and
high performance liquid chromatography.
[0046] After the reaction is determined to be complete, a first
portion of distilled water is added rapidly. A suitable amount of
the first portion of distilled water is between about 1% and about
9% by weight of the total composition. The mixture is stirred for a
second time period which is sufficient to allow the composition to
form a homogeneous mixture. Preferably the mixture is stirred for
at least 10 minutes. The stirring time may increase dramatically
corresponding with a scale-up of the process.
[0047] The at least one additional surfactant is rapidly added to
the reactor. A suitable amount of each additional surfactant is
between about 7% and about 30% by weight of the total composition.
The most preferred amount of each additional surfactant is between
about 8% and about 30% by weight of the total composition. The
mixture is stirred for a time period which is sufficient to allow
the composition to form a homogeneous mixture. Preferably the
mixture is stirred for at least 10 minutes. The stirring time may
increase dramatically corresponding with a scale-up of the
process.
[0048] The chelating agent is added to the reactor. The preferred
amount of chelating agent is between about 2% and about 8% by
weight of the total composition. The chelating agent may be added
to the present composition as an aqueous solution. In a preferred
embodiment the chelating agent is added to the composition as an
aqueous solution, and the chelating agent is present at a
concentration of between about 36% and about 40% by weight in the
aqueous solution. A commercially available aqueous solution of a
chelating agent, such as Versene, may be used. A suitable amount of
the aqueous solution of chelating agent is between about 7% and
about 19% by weight of the total composition. The most preferred
amount of the aqueous solution of chelating agent is between about
8% and about 19% by weight of the total composition.
[0049] The at least one hydrophobic active agent is added to the
reactor. A suitable amount of each hydrophobic active agent is
between about 1% and about 20% by weight of the total composition.
The most preferred amount of each hydrophobic active agent is
between about 2% and about 10% by weight of the total
composition.
[0050] Distilled water is added to the reactor. The distilled water
makes up the balance of the composition. A preferred amount of
distilled water for the second addition of distilled water is
between about 4% and about 44% by weight of the total composition.
The composition is allowed to cool to within 25 to 30 degrees
C.
[0051] Optionally, after cooling and prior to commercial
distribution, the composition may be passed through a filter to
remove any debris acquired during the processing steps.
[0052] Certain modifications and improvements will occur to those
skilled in the art upon a reading of the foregoing description. By
way of example, applications for this cleaning composition may be
extended to a cleaner for aircrafts which have exterior coatings
similar or identical to automobiles. All modifications and
improvements have been deleted herein for the sake of conciseness
and readability but are properly within the scope of the following
claims.
DESIGN EXAMPLE(S)
[0053] This section outlines a design example, not necessarily
optimized but illustrative of a suitable method, wherein the
cleaning composition of the current invention may be
formulated.
EXAMPLE
[0054] In this preferred embodiment of the method of formulating a
cleaning composition in a concentrated form a reactor is charged
with tetrahydrofurfuryl alcohol. The reactor is then charged with
monoethanolamine, wherein the volume of monoethanolamine is one
half the volume of the tetrahydrofurfuryl alcohol. The contents of
the reactor are heated to within the range of 80 to 90 degrees C.
The reactor is charged with tall oil (MeadWestvaco L-5) acquired
from MeadWestvaco. The volume of tall oil is equal to the volume of
the tetrahydrofurfuryl alcohol. The contents of the reaction are
stirred until the reaction is determined to be complete. The
reaction progress is followed by thin layer chromatography. The
reactor is charged with a first portion of distilled water, wherein
the volume of the first portion of distilled water is equal to the
volume of the tetrahydrofurfuryl alcohol. The contents of the
reaction are stirred for ten minutes. The reactor is charged with
the additional surfactants Triton X-100 and Triton X-45, acquired
from the Dow Chemical Company, wherein the amount of each
additional surfactant is equal to the volume of the
tetrahydrofurfuryl alcohol. The contents of the reactor are stirred
for ten minutes. The reactor is charged with the commercially
available aqueous solution of tetrasodium
ethylenediaminetetraacetic acid Versene, wherein the amount of
Versene is equal to the volume of the tetrahydrofurfuryl alcohol.
The reactor is charged with the hydrophobic active agent. The
reactor is charged with a second portion of distilled water,
wherein the volume of the second portion of distilled water is
equal to five times the volume of the tetrahydrofurfuryl alcohol,
and the mixture is allowed to cool to about room temperature.
* * * * *